Network Coverage

CSM operates the world's largest TV and Radio audience measurement network, covering more than 55,000 households and 182,000 individuals. Up to February, 2010 CSM delivers data from 180 TAM panels (1 national panel, 25 provincial panels, and 154 city panels including Hong Kong SAR) which provide data independently, measuring the viewing of 1,278 unique TV channels all day, every day of the year. Among these panels, CSM utilizes advanced people meter technology in the national panel, 10 provincial panels and 59 city panels. In CSM's leading position as China's key audience measurement supplier, CSM built and continues to expand its radio audience measurement panel network. As of February, 2010, CSM operates RAM panels in 33 major cities and measures the listening of 409 radio frequencies.CSM provides uninterrupted RAM service in 18 cities, such as Beijing, Shanghai and Guangzhou, and in the other 15 cities, CSM provides RAM sweep services.